Almost 100 property owners who have agreed to sell their homes through the Government's buyout offer have had their settlement dates extended.

The Canterbury Earthquake Recovery Authority is considering case-by-case extensions to settlement dates in the flat-land red zone based on vulnerability and individual circumstances.

Of the 316 requests from owners to date, 92 have been granted extensions with varying time frames, depending on their circumstances.

Five requests have been declined.

Requests received with all relevant information are generally being processed within a week, but in some cases it is taking longer as more information is sought from the property owner.

It is expected that most owners who have made requests will have a decision by the end of next week.

The opportunity to make an extension request has closed for most property owners, except those in Southshore and South New Brighton, who have until July 19, and Port Hills property owners, who have until January 31 to accept the Crown offer.

Requests can be made by calling 0800 RING CERA or through the residential red zone section of Cera's website at cera.govt.nz.